To say that the existing septic tank was located in an inaccessible back garden would be an understatement. Both houses were located high up on ground above garages which fronted the only available access road. With the rear garden sloping heavily down to the houses and with heavy clay subsoils, a soakaway was out of the question. WCI won the trust and an instruction by both owners by thinking outside the box. We lifted a small excavator over the garage using a long-boomed hiab from the road to divert drains to the rear of the garage. A hand-dig alongside the garage got the new foul drain to the front of the garage. A WPL Diamond sewage treatment plant was then installed under the single carparking space in front of the garage adjacent to the road. The treated effluent was then pumped via a rising main along the verge in front of both properties to reach a ditch in an adjacent farmers field. The work was completed within a week with no disruption to the use of the foul drains throughout.